How to use the countdown calculator
Name what you are counting down to, pick the date and the time, and choose the time zone it happens in. The clock ring starts at once. The outer ring shows how far along you are since the day you made the event, and the three rings inside it show the hours left in the day, the minutes left in the hour and the seconds left in the minute. The middle shows the calendar days to go. The five quick picks fill in Christmas, Christmas Eve, Thanksgiving, New Year's Eve and New Year's Day for your time zone, using the same rules as the Christmas countdown.
Anyone can make a countdown and share it. To keep events, sign in: nothing else about the page changes, and you do not need an account to try it.
How the countdown is figured
calendar days = the event's date − today's date, both read in the event's time zone
The page turns the date, the time and the zone into one exact moment, then subtracts the present from it. Whole days, hours, minutes and seconds come from that gap, and the seconds round up, so the clock reads 00:00:00 only when the moment has actually arrived. Calendar days are different: they count dates on the calendar in the event's zone, so an event tomorrow at 9 AM is 1 calendar day away even when only a few hours are left. Workdays count Monday to Friday and weekend days count Saturday and Sunday, for the dates strictly between today and the event date.
A worked example
It is noon on December 1, 2026 in New York, and the event is Christmas, which starts at midnight on December 25. The gap is 23 days and 12 hours, which is 564 hours, 33,840 minutes or 2,030,400 seconds. The calendar says 24 days to go (3 weeks and 3 days), because December 25 is 24 dates after December 1. Of the dates in between, 17 are workdays and 6 are weekend days.
Time zones and clock changes
An event keeps the date, the time and the zone you picked, so the moment follows that zone's rules, including daylight saving time. Two odd cases are handled the same way as on the Christmas countdown. A time that does not exist because clocks jump forward moves to the instant after the gap: 2:30 AM in New York on March 14, 2027 shows as 3:30 AM EDT. A time that happens twice when clocks fall back uses the first one: 1:30 AM on November 1, 2026 is 1:30 AM EDT. Pick the zone where the event happens, not where you are. A wedding in Honolulu counts down to Honolulu's clock, wherever you are watching it.
Saving events and the private trip budget
Signed-in visitors can save up to 20 events. An event keeps its name (up to 60 characters), date, time, zone, picture and an optional note (up to 280 characters). You can add a private budget to any event: the amount you plan to spend and up to 40 payments, each with the date paid, the amount and what it was for. Everything is typed by you; the page adds nothing and looks up no prices.
Money is kept in whole cents, so the totals never drift. The plan line divides what is left by the weeks until the event, rounding the weeks up and the dollars up to the next cent, so the plan never falls short. With a budget of $2,000, $500 paid and 54 days to go, $1,500 is left over 8 weeks: $187.50 a week, or $375.00 every two weeks. The budget stays in your account. It is not in a shared link, the share picture, the video or the calendar file, and you can delete an event, all your events, or download them as a file at any time.
Sharing a countdown
Share makes a link for Facebook, X and Pinterest, a link you can copy, a picture to download, and a video for TikTok made on your own device. A link keeps only the name, the date, the time, the zone and the picture you chose, plus your note if you ticked Show my note on shared links. The picture and the title are drawn fresh each time someone opens the link, so they always show today's countdown. A link stays up until 7 days after the event, and for no more than 400 days. People who open it see a read-only countdown; they cannot change your event, and your saved events and budget are not part of it.
What is not here yet
Two things people ask for are left out on purpose for now. Invites sent from the site would mean sending messages for you, which comes with consent rules and spam risk. Payment links to Venmo or PayPal would mean storing other people's payment handles and inviting scams. If either returns, this page will say so and the privacy page will change first.
Where the numbers come from
The date and time math uses your browser's own time zone data (the IANA zone database) through the same code as the Christmas countdown. Thanksgiving is the fourth Thursday of November, so it falls between November 22 and 28. A day is 86,400 seconds and a week is 604,800. Dates from 2000 to 2100 can be saved. No prices or exchange rates are used anywhere.
What people use it for
- A trip, with a private budget and a weekly saving plan.
- A wedding, a birthday, a move-in day or a due date, shared with family.
- Counting workdays left before a deadline, a vacation or a project.
- Events in another city, such as a flight that leaves in a different time zone.
Common mistakes
- Using your own time zone for an event somewhere else. Pick the zone where it happens.
- Mixing up calendar days and clock days. The big number counts dates; the rings count the real gap.
- Leaving the time blank. A blank time means midnight at the start of that date.
- Putting private details in a note you share. Leave the box unticked unless you want the note shown.
Questions
Who can see my events and my budget?
Only you, when you are signed in. A shared link shows the name, the date, the time, the zone and the picture, and your note only if you ticked the box. The budget is never shared.
What happens when the date arrives?
The clock reads 00:00:00, the page celebrates, and it keeps showing the event as today. After the date it says how many days ago it was.
Does it handle daylight saving time?
Yes. The moment is worked out in the zone you pick, so clock changes are included.
Can I invite people or collect money here?
Not yet. Sending invites from the site and Venmo or PayPal links are left out for now.
How do I delete my events?
Delete one from My events, delete them all with one button, or download them first as a file. To close your account and everything attached to it, write to privacy@aerialquote.com.
Can I count down without signing in?
Yes. You can make a countdown, share it and add it to your calendar. Only keeping events and the budget needs an account.